selective neuronal necrosis

selective neuronal necrosis

a widespread destruction of neurons caused by hypoxic or ischemic events. Only a fraction of the neurons in a given region are destroyed, selected apparently at random.
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The aneurysmal dilation of the vein of Galen generally has associated neuropathologic findings, consisting of a variety of ischemic lesions (cerebral infarction, basal ganglia infarction, periventricular leukomalacia, selective neuronal necrosis of cerebral cortex or brainstem), hemorrhagic lesions (subarachnoid hemorrhage, germinal matrix-intraventricular hemorrhage, IC hemorrhage, and venous thrombosis), and mass effects of the malformation (including hydrocephalus secondary to obstruction, and compression of other structures).
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